One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,10)(3,11,15,27)(4,8,17,24)(5,19,12,9)(7,20,22,14)(13,26,16,30)(18,32,28,25)(21,31,23,29)(33,34)(35,43)(36,41)(37,39)(38,50)(40,46)(42,49)(44,57)(45,56)(47,53)(48,61)(51,52)(54,59)(55,60)(58,64)(62,63)(1,3,12,20,6,15,5,14)(2,7,19,27,10,22,9,11)(4,16,28,29,17,13,18,31)(8,23,32,26,24,21,25,30)(34,39)(40,52)(41,53)(42,50)(43,56)(54,63)(55,61)(57,64)(1,4)(2,8)(3,13)(5,18)(6,17)(7,21)(9,25)(10,24)(11,26)(12,28)(14,29)(15,16)(19,32)(20,31)(22,23)(27,30)(33,35,37,45)(34,40,39,52)(36,44,47,58)(38,51,49,46)(41,54,53,63)(42,56,50,43)(48,62,60,59)(55,64,61,57)(4,17)(8,24)(13,16)(18,28)(21,23)(25,32)(26,30)(29,31)(33,36)(34,41)(35,44)(37,47)(38,48)(39,53)(40,54)(42,55)(43,57)(45,58)(46,59)(49,60)(50,61)(51,62)(52,63)(56,64) involution — undirected(36,47)(41,53)(44,58)(48,60)(54,63)(55,61)(57,64)(59,62) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.